Corn threshing device with anti-blocking function

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a corn threshing device with an anti-blocking function, which comprises two box bodies, a conveying mechanism is arranged in one box body, the mechanism comprises a mounting frame, a conveying belt, a rotating wheel and a motor, the mounting frame is fixed on the inner wall of the box body, the surface of the conveying belt is connected with a partition plate, and the rotating wheel is connected with the motor. The two rotating wheels are horizontally arranged, spiral protrusions are arranged on the peripheries of the two rotating wheels, the wheel shafts are installed in the installation frame, and one ends of the wheel shafts are connected with gears meshed with each other. A fixing mechanism is arranged in the other box body and comprises a tower-shaped disc, a sliding rod and a motor, stable feeding is achieved through a horn mouth and a buffer box, corn cobs are separated through a conveying belt partition plate, bristles are used for sweeping, dust and dust are cleaned through a suction pipeline, and the tower-shaped disc and a separation plate are matched with springs correspondingly to achieve self-adaptive clamping and attaching to adapt to the corn cobs with different diameters; the threshing blades efficiently peel grains, and the rollers reduce friction; dust collection is thorough, and impurities are removed through a suction pipeline; the structure is simplified; the size is small; the cost is low; and the maintenance is easy.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, specifically, it relates to a corn threshing device with anti-clogging function. Background Technology

[0002] Corn, as an important food crop, requires threshing after harvest to facilitate subsequent storage, processing, and sales for farmers. Currently available small-scale corn threshing devices often experience problems such as corn cobs clogging the feed inlet or threshing mechanism. This not only affects threshing efficiency but also requires manual shutdown for cleaning, increasing the workload of operators. Furthermore, traditional threshing devices are not well-suited to the size of the corn cobs, resulting in poor fixation and causing the cobs to wobble during threshing, affecting threshing quality. Simultaneously, the collection of threshed corn kernels is not thorough, leading to residue and waste. Additionally, dust remaining in the gaps between the corn cobs mixes with the collected kernels, reducing kernel purity and affecting the quality for sale.

[0003] Therefore, there is an urgent need for a corn threshing device that is suitable for small-scale scenarios, has good anti-clogging effect, strong size adaptability, and can remove dust and collect it thoroughly to solve the above problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A corn threshing device with anti-clogging function includes a second box and a first box. The second box is equipped with a conveying mechanism, which includes a mounting frame, a conveyor belt, a rotating wheel, and a second motor. The mounting frame is fixed to the inner side wall of the second box. Several partitions are fixedly connected to the surface of the conveyor belt. Brush bristles are fixedly connected to the upper end of the partitions. The rotating wheel is divided into two and arranged horizontally. Spiral protrusions are fixedly fixed around the outer periphery of the rotating wheel. The shaft of the rotating wheel is movably installed inside the mounting frame. A gear is fixedly connected to one end of the shaft of each rotating wheel, and the gears mesh with each other. The first housing is equipped with a fixing mechanism, which includes a tower-shaped plate, a sliding rod, and a first motor. The tower-shaped plates are divided into four groups, and each group consists of two tower-shaped plates. The tower-shaped plates in each group are in a state where their tips face each other. Several arc-shaped grooves are opened on the outer periphery of the tower-shaped plates, and a sliding sleeve is fixedly sleeved in the middle of the tower-shaped plates. The sliding rod corresponds to the sliding sleeve and slides with it.

[0005] In a preferred embodiment of the present invention, the conveyor roller shafts inside the conveyor belt are connected by a first transmission assembly, and the conveyor roller shaft is connected to one of the gears by the first transmission assembly. A second motor is fixedly installed on one side of the mounting frame, and the shaft of the second motor is fixedly connected to one of the conveyor roller shafts.

[0006] In a preferred embodiment of the present invention, a first spring is sleeved on both the upper and lower ends of the slide rod, and a support frame is fixedly connected to the lower end of the slide rod. One outer end of the support frame is fixedly connected to the inner side wall of the first housing. A second transmission assembly is installed on the upper end of the slide rod, and the top of the slide rod is movably installed on the top of the first housing. The second transmission assembly drives the slide rods in pairs, and a worm gear is fixedly connected to the top of one of the slide rods.

[0007] In a preferred embodiment of the present invention, a support rod is fixedly connected to the inner side wall of the first housing, an annular sleeve is fixedly connected to one end of the inner side of the support rod, a rotating ring is movably sleeved inside the annular sleeve, and a hollow gear is fixedly connected to one side of the rotating ring.

[0008] In a preferred embodiment of the present invention, a first motor is fixedly installed at the upper interior of the first housing, a motor gear is fixedly installed on the axial shaft of the first motor, a toothed belt is sleeved around the motor gear, the other end of the toothed belt is sleeved around the hollow gear, and a worm is fixedly connected to the outside of the motor gear, the worm corresponding to and meshing with the worm wheel.

[0009] In a preferred embodiment of the present invention, a plurality of sliding sleeves are fixedly connected to the inner side of the hollow gear, a telescopic rod is movably sleeved inside the sliding sleeve, a second spring is installed between the telescopic rod and the inside of the sliding sleeve, a release plate is fixedly connected to the lower end of the telescopic rod, a square hole is opened on the plate body of the release plate, a roller is installed in the square hole, and a release blade is opened at the tip of the release plate.

[0010] In a preferred embodiment of the present invention, a third flared opening is fixedly installed at the bottom of the first box, and a discharge port is fixedly connected below the third flared opening. The discharge port passes through the bottom of the first box and is fixedly sleeved thereon. The opening position at the upper end of the third flared opening corresponds to the position of the release plate.

[0011] In a preferred embodiment of the present invention, the first box and the second box are fixedly connected. A buffer box is fixedly connected to the upper end of the second box. A first flared mouth is fixedly connected to the upper end of the buffer box. The lower end of the buffer box corresponds to the conveyor belt. A second flared mouth is fixedly connected to the lower end of the second box. A suction pipe is fixedly installed at the lower end of the second flared mouth. The suction pipe is connected to an external exhaust fan.

[0012] Compared with the prior art, the present invention has the following advantages: 1. Significant anti-clogging effect: The system features a first funnel-shaped inlet and a buffer box for stable feeding, a conveyor belt partition to separate corn cobs, brushes to clean the gaps between corn cobs, a rotating wheel with spiral protrusions to comb through the cobs, and a suction pipe to clean debris and dust. This multi-layered structure prevents clogging throughout the entire process of feeding, conveying, and cleaning, eliminating the need for frequent shutdowns for cleaning and improving threshing efficiency and quality.

[0013] 2. Strong size adaptability: The tower-shaped plate, together with the first spring, achieves self-adaptive clamping, and the release plate, together with the second spring, achieves self-adaptive fitting, which can be adapted to corn cobs of different diameters, solving the limitation of traditional small devices that are "applicable to only one size". 3. High threshing quality: The detaching blade efficiently separates the corn kernels, the rollers reduce friction on the corn cob, and the synchronously linked fixing and threshing mechanisms prevent the corn cob from shaking. This ensures thorough threshing while reducing the occurrence of broken kernels and damaged skin, thus guaranteeing the quality of the corn kernels sold. 4. Thorough dust removal and collection: The suction pipe removes dust and debris, preventing corn kernels from being mixed with impurities; the third funnel collects corn kernels from all directions, and the discharge port quickly discharges them, leaving no residue or waste, reducing the labor intensity of farmers for subsequent sorting and cleaning. 5. Suitable for small-scale applications: It adopts dual-motor drive, which simplifies the power structure, has a compact component layout, small size, low cost and convenient maintenance, and meets the miniaturization and lightweight needs of farmers and households.

[0014] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 A schematic diagram of the overall appearance of a corn threshing device with anti-clogging function; Figure 2 This is a schematic diagram of the internal structure of a corn threshing device with anti-clogging function; Figure 3 This is an enlarged schematic diagram of the fixing mechanism of a corn threshing device with anti-clogging function; Figure 4 A schematic diagram of the conveying mechanism of a corn threshing device with anti-clogging function; Figure 5 This is an enlarged schematic diagram of the conveying mechanism of a corn threshing device with anti-clogging function; Figure 6 A partial disassembly diagram of the threshing mechanism of a corn threshing device with anti-clogging function; Figure 7 This is an enlarged schematic diagram of the main threshing components of a corn threshing device with anti-clogging function; Figure 8This is a bottom-view enlarged schematic diagram of the main threshing components of a corn threshing device with anti-clogging function.

[0016] In the diagram: 1. First bell mouth; 2. Buffer box; 3. Second box; 4. Second bell mouth; 5. Suction pipe; 6. Discharge port; 7. First box; 8. Mounting frame; 9. First transmission assembly; 10. Gear; 11. First motor; 12. Toothed belt; 13. Conveyor belt; 14. Partition plate; 15. Brush; 16. Support frame; 17. Tower-shaped plate; 18. Annular sleeve; 19. Second transmission assembly; 20. Rotating wheel; 21. Worm gear; 22. Worm; 23. Motor gear; 24. Slide rod; 25. First spring; 26. Second motor; 27. Spiral protrusion; 28. Support rod; 29. ​​Rotating ring; 30. Hollow gear; 31. Slide sleeve; 32. Second spring; 33. Telescopic rod; 34. Release plate; 35. Release blade; 36. Roller; 37. Third bell mouth. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0018] like Figures 1 to 8 As shown, a corn threshing device with anti-clogging function includes a second box 3 and a first box 7. The second box 3 is equipped with a conveying mechanism, which includes a mounting frame 8, a conveyor belt 13, a rotating wheel 20, and a second motor 26. The mounting frame 8 is fixed on the inner side wall of the second box 3. Several partitions 14 are fixedly connected to the surface of the conveyor belt 13. Brush bristles 15 are fixedly connected to the upper end of the partitions 14. The rotating wheel 20 is divided into two and arranged horizontally. The outer periphery of the rotating wheel 20 is spirally surrounded by a spiral protrusion 27. The shaft of the rotating wheel 20 is movably installed inside the mounting frame 8. A gear 10 is fixedly connected to one end of the shaft of the rotating wheel 20, and the gears 10 mesh with each other. The first housing 7 is equipped with a fixing mechanism, which includes a tower-shaped plate 17, a sliding rod 24 and a first motor 11. The tower-shaped plate 17 is divided into four groups, and each group consists of two tower-shaped plates 17. The tower-shaped plates 17 in each group are in a state of tip-to-tip relationship. Several arc-shaped grooves are opened on the outer periphery of the tower-shaped plate 17, and a sliding sleeve is fixedly sleeved in the middle of the tower-shaped plate 17. The sliding rod 24 corresponds to the sliding sleeve and slides with it.

[0019] In this setup, the first transmission component enables the power linkage between the conveyor belt and the rotating wheel, while the second motor provides a unified power source. This ensures that the conveyor belt speed matches the combing speed of the rotating wheel, preventing corn cobs from getting stuck and blocked in the conveying path due to their inconsistent rhythms. At the same time, it simplifies the power structure of the small device, reduces the number of parts, and lowers equipment costs and maintenance difficulty.

[0020] like Figures 1 to 8 As shown, in a specific embodiment, the conveyor roller shafts inside the conveyor belt 13 are connected by a first transmission assembly 9, and the conveyor roller shafts are connected to one of the gears 10 by the first transmission assembly 9. A second motor 26 is fixedly installed on one side of the mounting frame 8, and the shaft of the second motor 26 is fixedly connected to one of the conveyor roller shafts.

[0021] In this setup, the first spring provides elastic cushioning to the sliding rod, allowing the tower-shaped disc to adaptively adjust the clamping distance according to the diameter of the corn cob, solving the problem of poor adaptability of traditional small devices to corn cobs of different sizes; the support frame ensures the stability of the sliding rod installation and prevents the sliding rod from shifting during threshing; the second transmission component enables the two sets of sliding rods to rotate synchronously, and the worm gear provides a power input interface for the sliding rod, ensuring that the tower-shaped disc can stably clamp corn cobs of different sizes and prevent the corn cobs from shaking during threshing.

[0022] like Figures 1 to 8 As shown, in a specific embodiment, a first spring 25 is sleeved on both the upper and lower ends of the slide rod 24, and a support frame 16 is fixedly connected to the lower end of the slide rod 24. One outer end of the support frame 16 is fixedly connected to the inner side wall of the first housing 7. A second transmission assembly 19 is installed on the upper end of the slide rod 24, and the top of the slide rod 24 is movably installed on the top of the first housing 7. The second transmission assembly 19 drives the slide rods in pairs, and a worm gear 21 is fixedly connected to the top of one of the slide rods 24.

[0023] In this setup, the support rod fixes the installation position of the ring sleeve, and the movable sleeve structure of the rotating ring and the ring sleeve ensures that the hollow gear maintains coaxiality when rotating, avoiding jamming or wear of the threshing assembly due to eccentricity. This provides a stable installation foundation for the threshing mechanism, adapts to the structural precision requirements of small devices, and extends the service life of the equipment.

[0024] like Figures 1 to 8 As shown, in a specific embodiment, a support rod 28 is fixedly connected to the inner side wall of the first housing 7, an annular sleeve 18 is fixedly connected to one end of the inner side of the support rod 28, a rotating ring 29 is movably sleeved inside the annular sleeve 18, and a hollow gear 30 is fixedly connected to one side of the rotating ring 29.

[0025] In this configuration, a single first motor simultaneously drives the fixing mechanism and the threshing mechanism: the motor gear drives the hollow gear to rotate via a toothed belt (driving the threshing assembly), and the worm gear meshes with the worm wheel to drive the slide bar to rotate (driving the tower-shaped disc to hold the corn cob to rotate), achieving synchronous linkage between the two, avoiding relative motion disorder between the corn cob and the threshing assembly due to asynchronous actions, and reducing the situation of incomplete threshing; at the same time, it reduces the number of power components, meeting the design requirements of small-scale, lightweight, and low-cost devices.

[0026] like Figures 1 to 8 As shown, in a specific embodiment, a first motor 11 is fixedly installed at the upper end of the interior of the first housing 7. A motor gear 23 is fixedly installed on the axial shaft of the first motor 11. A toothed belt 12 is sleeved around the motor gear 23. The other end of the toothed belt 12 is sleeved around the hollow gear 30. A worm 22 is fixedly connected to the outside of the motor gear 23. The worm 22 corresponds to and meshes with the worm wheel 21.

[0027] In this setup, the sliding engagement of the sleeve and the telescopic rod, combined with the elastic thrust of the second spring, allows the release plate to closely adhere to the surface of corn cobs of different diameters, ensuring that the release blade can effectively contact the corn kernels. The release blade achieves efficient kernel stripping, solving the problems of low threshing efficiency and excessive residue in traditional small devices. The rollers reduce friction between the release plate and the corn cob, preventing damage to the corn cob skin or crushing of the kernels, thus improving threshing quality and ensuring the market value of the corn kernels.

[0028] like Figures 1 to 8 As shown, in a specific embodiment, a plurality of sliding sleeves 31 are fixedly connected to the inner side of the hollow gear 30. A telescopic rod 33 is movably sleeved inside the sliding sleeve 31. A second spring 32 is installed between the telescopic rod 33 and the inside of the sliding sleeve 31. A release plate 34 is fixedly connected to the lower end of the telescopic rod 33. A square hole is opened on the plate body of the release plate 34. A roller 36 is installed in the square hole. A release blade 35 is opened at the tip of the release plate 34.

[0029] In this setup, the large opening of the third funnel allows for comprehensive collection of threshed corn kernels, preventing them from scattering in the gaps at the bottom of the first chamber and causing waste. The discharge port extends directly through the bottom of the chamber, enabling rapid discharge of corn kernels without the need for manual cleaning, reducing the workload for farmers and meeting the "threshing and collecting immediately" requirements of small-scale devices.

[0030] like Figures 1 to 8As shown, in a specific embodiment, a third flared opening 37 is fixedly installed at the bottom of the first box 7, and a discharge port 6 is fixedly connected below the third flared opening 37. The discharge port 6 penetrates the bottom of the first box 7 and is fixedly connected to it. The opening position at the upper end of the third flared opening 37 corresponds to the position of the release plate 34. The first box 7 and the second box 3 are fixedly connected. A buffer box 2 is fixedly connected to the upper end of the second box 3. A first flared opening 1 is fixedly connected to the upper end of the buffer box 2. The lower end of the buffer box 2 corresponds to the conveyor belt 13. A second flared opening 4 is fixedly connected to the lower end of the second box 3. A suction pipe 5 is fixedly installed at the lower end of the second flared opening 4. The suction pipe 5 is connected to an external exhaust fan.

[0031] In this setup, the first flared opening enlarges the feed inlet diameter, working in conjunction with the buffer box to ensure a smooth feed transition of the corn cobs, preventing them from falling in a concentrated manner and causing blockage at the feed inlet. The suction pipe works in conjunction with an external exhaust fan to suck up dust and corn scraps from the second chamber through the second flared opening, effectively removing residual dust from the gaps in the corn cobs, solving the problem of dust mixed into the corn kernels, and improving the purity of the corn kernels. At the same time, it keeps the inside of the second chamber clean, reducing the risk of conveyor blockage caused by the accumulation of scraps.

[0032] The implementation principle of a corn threshing device with anti-clogging function in this embodiment is as follows: Feeding and anti-clogging conveying: Farmers feed corn cobs through the first funnel 1, and the buffer box 2 makes the corn cobs fall smoothly onto the conveyor belt 13; the second motor 26 starts, and drives the conveyor belt 13 and the rotating wheel 20 to run synchronously through the first transmission component 9. The conveyor belt 13 separates the corn cobs through the partition 14 to prevent them from piling up, and the brush 15 cleans the dust and debris on the surface of the corn cobs; the rotating wheel 20 achieves synchronous reverse rotation through the meshing gear 10, and the spiral protrusion 27 combs the corn cobs and conveys them to one side of the tower-shaped plate 17; at the same time, the external exhaust fan removes the dust and debris in the second box 3 through the suction pipe 5 and the second funnel 4, and initially purifies the corn cobs. Adaptive fixing: After the corn cob enters the first box 7 with the conveying mechanism, it falls between the four sets of tower-shaped plates 17; the first spring 25 pushes the slide rod 24 to drive the tower-shaped plate 17 to fit the surface of the corn cob, and the arc groove is adapted to the shape of the corn cob to achieve stable clamping; due to the elastic buffer of the first spring 25, the tower-shaped plate 17 can adaptively adjust the spacing according to the diameter of the corn cob to adapt to corn cobs of different sizes. Synchronous threshing: The first motor 11 starts, and its axial shaft drives the motor gear 23 and worm 22 to rotate synchronously. The motor gear 23 drives the hollow gear 30 to rotate via the toothed belt 12. The hollow gear 30 drives the sliding sleeve 31, telescopic rod 33, and release plate 34 to rotate around the corn cob. The worm 22 meshes with the worm wheel 21 to drive the sliding rod 24 to rotate. The sliding rod 24 drives the tower-shaped disk 17 to rotate synchronously with the corn cob via the second transmission assembly 19. Under the thrust of the second spring 32, the release plate 34 tightly adheres to the corn cob. During the rotation, the release blade 35 peels off the corn kernels, and the roller 36 reduces frictional resistance. Thorough collection: The threshed corn kernels fall into the third funnel 37 under the action of gravity, are concentrated and guided by the third funnel 37 to the discharge port 6, and are finally discharged and collected from the discharge port 6, completing the entire threshing process.

Claims

1. A corn threshing device with anti-clogging function, comprising a second chamber (3) and a first chamber (7), characterized in that: The second housing (3) is equipped with a conveying mechanism, which includes a mounting frame (8), a conveyor belt (13), a rotating wheel (20), and a second motor (26). The mounting frame (8) is fixed on the inner side wall of the second housing (3). Several partitions (14) are fixedly connected to the surface of the conveyor belt (13). Brush bristles (15) are fixedly connected to the upper end of the partitions (14). The rotating wheel (20) is divided into two and arranged horizontally. Spiral protrusions (27) are fixedly fixed around the outer periphery of the rotating wheel (20). The shaft of the rotating wheel (20) is movably installed inside the mounting frame (8). A gear (10) is fixedly connected to one end of the shaft of the rotating wheel (20), and the gears (10) mesh with each other. The first housing (7) is provided with a fixing mechanism inside. The fixing mechanism includes a tower-shaped plate (17), a sliding rod (24) and a first motor (11). The tower-shaped plate (17) is divided into four groups, and each group consists of two tower-shaped plates (17). The tower-shaped plates (17) in each group are in a state of tip-to-tip relationship. Several arc-shaped grooves are opened on the periphery of the tower-shaped plate (17), and a sliding sleeve is fixedly sleeved in the middle of the tower-shaped plate (17). The sliding rod (24) corresponds to the sliding sleeve and slides with it.

2. The corn threshing device with anti-clogging function according to claim 1, characterized in that, The conveyor roller shafts inside the conveyor belt (13) are connected by a first transmission assembly (9). The conveyor roller shaft is connected to one of the gears (10) by the first transmission assembly (9). A second motor (26) is fixedly installed on one side of the mounting bracket (8). The shaft of the second motor (26) is fixedly connected to one of the conveyor roller shafts.

3. A corn threshing device with anti-clogging function according to claim 1, characterized in that, The upper and lower ends of the slide rod (24) are fitted with first springs (25), and the lower end of the slide rod (24) is fixedly connected to a support frame (16). The outer end of the support frame (16) is fixedly connected to the inner side wall of the first housing (7). The upper end of the slide rod (24) is fitted with a second transmission assembly (19), and the top of the slide rod (24) is movably mounted on the top of the first housing (7). The second transmission assembly (19) drives the slide rods in pairs, and one of the slide rods (24) is fixedly connected to a worm gear (21).

4. A corn threshing device with anti-clogging function according to claim 3, characterized in that, A support rod (28) is fixedly connected to the inner wall of the first housing (7). An annular sleeve (18) is fixedly connected to one end of the inner side of the support rod (28). A rotating ring (29) is movably sleeved inside the annular sleeve (18). A hollow gear (30) is fixedly connected to one side of the rotating ring (29).

5. A corn threshing device with anti-clogging function according to claim 4, characterized in that, A first motor (11) is fixedly installed at the upper inside of the first housing (7). A motor gear (23) is fixedly installed on the axial shaft of the first motor (11). A toothed belt (12) is sleeved around the motor gear (23). The other end of the toothed belt (12) is sleeved around the hollow gear (30). A worm (22) is fixedly connected to the outside of the motor gear (23). The worm (22) corresponds to and meshes with the worm wheel (21).

6. A corn threshing device with anti-clogging function according to claim 5, characterized in that, The hollow gear (30) is fixedly connected to a plurality of sliding sleeves (31). A telescopic rod (33) is movably sleeved inside the sliding sleeve (31). A second spring (32) is installed between the telescopic rod (33) and the sliding sleeve (31). A release plate (34) is fixedly connected to the lower end of the telescopic rod (33). A square hole is opened on the plate body of the release plate (34). A roller (36) is installed in the square hole. A release blade (35) is opened at the tip of the release plate (34).

7. A corn threshing device with anti-clogging function according to claim 5, characterized in that, A third horn (37) is fixedly installed at the bottom of the first box (7). A discharge port (6) is fixedly connected below the third horn (37). The discharge port (6) passes through the bottom of the first box (7) and is fixedly connected to it. The opening position of the upper end of the third horn (37) corresponds to the position of the release plate (34).

8. A corn threshing device with anti-clogging function according to claim 7, characterized in that, The first box (7) and the second box (3) are fixedly connected. The upper end of the second box (3) is fixedly connected to a buffer box (2). The upper end of the buffer box (2) is fixedly connected to a first horn (1). The lower end of the buffer box (2) corresponds to the conveyor belt (13). The lower end of the second box (3) is fixedly connected to a second horn (4). The lower end of the second horn (4) is fixedly installed with a suction pipe (5). The suction pipe (5) is connected to an external exhaust fan.

Images